Freezing can



Aug. 21; 1923. 11,465,336

A. J. BENTLEY FREEZING CAN Filed Dec. 27, 1920 W 3513 @btomww ANSON J. BENTLEY, or nuns, OHIO.

FREEZING can.

Application filed December 27, 1920. Serial No. 433,164.

To all whom it may concern:

Beit 'khown thac I, Anson J4: BENTLEY,

a citizen ofthe United'-States,and awresi= dent ofthe city of Nilescountyof' Trum-- bull, ancPState of Ohio, have invented an Improvement in Freezing Cans, of {which the followin is a specification.

The present invention relates to improvements'in freezing cans'used in the manufacture of ice and particularly to an improved construction of caniwhcrein means areprovided to force air into the can at or near the bottom to agitate the water which is to be frozen; this being the commonly accepte'dpractice in what'is known as the rawwater can system of ice making.

Inthe manufactureof ice by the so-called rawwater system it is customary to provide freezingcans whichare immersed in a freezing solution such as brine.- In order that the impurities commonlypresent in water available for the manufacture of ice may not be frozen into the'finished cakes of ice, somemeans are provided for introducing air into the can of watertat or near the bottom; The action of this air current upon the water is such that the lmpurities are not I frozen into the ice, but are collected in the small amount of water which remains unfrozen in a pocket in the icecake at the termination of the freezing period.

Many different constructions have been suggested and used by whichtheair may be introduced intothe water. Generally'a pipe or tubeof some sortis provided which is attached to the outside, or sometimes to the inside of'the can, and opens into the can somewhere near the bottom ZLIKl'hElS itsother end readily accessible for connection with a source of compressed air. The most gen erally used process of manufacturingrice re.- quires that the freezing cans, [which are adapted to contain three hundredor more pounds of water, he handled several times for every cake of ice produced; For ex ample,the can must first be placed in .the brine solution, filled Withwater either before or after being placed in the tankand when freezing has been completed, taken from the brine by a traveling crane, immersed in warm water to loosenthe ice cake and inverted to dump the ice cake out of the can. Several cans are usually; handled toge'ther. Itwillbereadily seen that in so much handlin the 'cans are subjected to very rough treatment.

Considerable difficulty has been encountered in protecting the air tube from injury; If it is located externally of the can it"is apt to be jammed or pulled oil' tl1e candurnghandling and if it is located internally 1t apt to be separated from the can by the actlonof the water both when it is freezingandwhen the I can.

It is an object of the present invention to i so construct the can that the air tube will befully protected as well from external inury as from internal injury.

A preferred embodiment of the invention has 'ieen selected for purposes of illirstration and description and is shown inthe accompanying drawings, wherein- Figure l is a perspective viewof a freezn can embodying a preferred form of the invention,

Figure is a similar view with parts of the can cut away,

Figure 3 is an enlarged top plan View of one corner of the can, and

Figure 4 is an enlarged view similar to Figure 2.

The freezing can shown in" the accon1- pa-nyingdrawings may be made in accordance with Letters Patent No. 1,027.802, dated MayQS, 1912. iIrso tar as thegciieral construction its side walls and bottom, and theformation ofseams, are concerned. The can shown comprises two pieces of galvan iZcd SllQGtIliBfll, one of whiclr forms the side wall 1. and the end wall 2, while the other forms the side wall 3 and the end .wall i. A third piece of sheet metal is suitably cut to form the bottom 5 of the can. The side walls may, if desired, be formed with grooves 6 in order to stiffen them. i

As before stated, it isdesirable to protect the air tube as completely as possible and herein an illustrative construction is shown whereby the tube may be completely protected in a can of the type referred to. This is accomplished withoutany appreciable increase intlie amount of sheet metal usedin the formation ofthe can and without sub s'tantially changing the present mode, of manufacture, all of which will obviously re sult in a distinct economy.

In the formation of the sheets which condetail perspective stantial portion of its periphery,

stitute the walls of the can, a lip or protecting flange is rolled up from the normal plane of the sheet adjacent one or both of the seams. In the present instance, the seams come near the corners of the can and consequently the protecting lip 7 is rolled or otherwise formed along the edge of the sheet which forms the side wall 3. Obviously, the corresponding edge oi the side wall 1 may be similarly formed it it were desired to place two tubes in the can. This lip 7 may extend the entire length of the: side of the can, or may terminate a slight distance above the bottom as shown in Figure 2 and is of such dimension that it will enclose an appropriate air tube.

In the manufacture of freezing cans it is customary to join the two sections forming; the side and end walls by riveting; lVhen these two sections are brought together an; air tube 8 may be laid in position and when the rivets have been headed over to makethe joint, the lip 7 in cooperation with the; corner of the side wall 2 will hold the tube 8 firmly in the corner of the can. This tube; may be of suflicient length to extend slightly beyond the lower end of the lip 7, or termi-- nateon a level with the bottom of the lip as;

may be desired.

When both seams bottom of the can may be put in securely riveted. Then a reinforcing 9 may be placed around the top edge of the: can and likewise securely riveted in place The several joints of the can may now be soldered in the customary manner ant.

have been formed, the place and provide additional means for securing the tube firmly in place.

The construction just complete protection for the air tube.

described provides It is protected on the outside by the corner of the side 2 and on the inside by lip 7 formed from the metal of the side 3. If desired,

some form of fitting, ampropriate to the par ticular system in which the can is to be used may be connected with the upper end of the air tube.

The invention may be modified and variously embodied within the scope of the" subjoined claims.

I claim as my invention:

1. A freezing can for use in the manufacture of ice comprising, in combination, sheet metal side members each constituting the'complete side wall of the can for a sub said side members being overlapped and connected along a vertical seam and formed adjacent said seam to present between the inner face of the outer overlapping portion and the outer face of the inner overlapping portion a vertical channel and a tube within said channel arranged to,conduct air to a point near the bottom of the can.

band

the soldering of the seam adjacent the tube will I 2. A freezing can for use in the manufac-- ture of ice comprising, in combination, sheet metal side members each constituting the complete side wall; of the can for a substan- ;tial portionof its periphery, said side mem- ;bottom member, sheet metal side members each secured thereto, the edge portion of one ,ide member overlapping the edge portion of another side member and secured thereto along a vertical line to form a seam, the extreme edge portion of one side member beyond the. seam, being bent to provide a tube protecting channel, and a tube within said channel to conduct air to a point near the bottom of the can.

4:. A "freezing can for use in the manufacture of ice comprising, in combination, a bottom member, sheet metal side members each secured to the bottom member along its lower edge andhaving vertical edge portions overlapping each other to form a scam, the outer side member being secured at its edge to the outer face of the inner sidemember along a line parallel to and spaced ashort distance from its edge, the free edge portion of the inner side member beyondthe seam being bent to form between itself and the body of the outer side member a protecting channel communicating along its whole length with the interior of the can and, an air tube positioned in said protecting channel and extending toward the bottom of the can. H

5. A freezing can for use in the manufacture of ice having a lip with a free edge struck up along an edge of one of the meta]. sheets forming the wall members of the can and an air tube located between'sa-id lip and another of said metal sheets adjacent the line of jointure of said sheets.

6. A freezing can for use in the manufacture oil? ice comprising, in combination, sheet metal sidewall members each constituting the complete side wall of the can for a substantial portion of its periphery, a portion of one of the side wall members being dis torted to form a vertical protecting channel wherein an integral portion of one of said wallrmembers separatessaid channel from the exterior of the can, and a tube in said channel for conducting air to a point near the bottom of the can. i

7. A freezing can for use in the manufacture of icehaving a peripheral side wall comprising imperforate sheet metal side wall members, each constituting'the comchannel and separating it from the exterior of the can and a tube in said channel to deliver air to a point near the bottom of the 1 can.

In testimony whereof, I have signed my name to this specification this 17th day of December, 1920.

ANSON J. BENTLEY. 

